GET RID OF BIOLOGY AND CHEMISTRY

explain everything with physics.
scientists should strive to explain everything as accurately as reasonably possible and as simplified as possible without oversimplifying. Physics is the best field we have available for such a task.
everything else is just remnants of ancient systems of trying to explain the nature of reality, and quantum physics is not well understood yet.

Chemistry and biology, at their base, essentially do describe everything with physics. It's just that they are subjects inside of the vast field of physics that are significant enough to be studied in their own light. By focusing on the most important factors of these subjects, we are able to increase our understanding of them. Completely abandoning the more applied versions of physics would be like doing all math with only addition and subtraction. It would still be doable in a sense, but much less inefficient.